Developer

JSON Formatter & Validator

Beautify, minify, and validate JSON instantly in your browser. Nothing is sent to a server.

Input JSON

Output

Output appears here…

Indent:

Supports JSON5-style detection. All processing is local — your data never leaves the browser.

PixTrimIO keeps PDF and image workflows fast, privacy-friendly, and browser-based. Privacy-first PDF and image tools that run entirely in your browser. Compress, merge, convert, crop, OCR, and edit files online for free without uploading.

Frequently asked questions

Does the formatter validate JSON?

Yes. If the JSON is invalid, an error message shows the location of the syntax error.

Can I minify JSON as well as beautify it?

Yes. You can switch between pretty-print and minified output.

Is my data sent to a server?

No. All processing runs securely in your browser without uploading.

How to format JSON online for free

Beautify and validate JSON instantly securely in your browser without uploading.

Paste your JSON — Paste raw or minified JSON into the input field.
Format — Click Format or press the shortcut. The tool validates and pretty-prints the JSON.
Copy or download — Copy the formatted JSON or download it as a .json file.

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